{"product_id":"carrier-py2ppb042090aa-control-board-cyc67p","title":"OEM Carrier DSI Control Board LH33WP003 for PY2PPB042090AA","description":"\u003ch1\u003eOEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP003 for Model PY2PPB042090AA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM \u003cstrong\u003eCarrier LH33WP003\u003c\/strong\u003e Direct Spark Ignition (DSI) Control Board — the factory-specified replacement for the \u003cstrong\u003eCarrier PY2PPB042090AA\u003c\/strong\u003e packaged gas\/electric unit. The DSI control board is the nerve center of your system's heating operation: it manages spark ignition sequencing, monitors the flame sensor, controls the gas valve, coordinates blower and inducer motor timing, and initiates safety lockout when a fault condition is detected. When this board fails, common symptoms include a no-heat condition, repeated ignition lockout codes, failure to light after trial-for-ignition, or erratic cycling that won't resolve with a simple reset.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e LH33WP003 | Board Type: Direct Spark Ignition (DSI) | Microprocessor-based combustion control | Factory-matched to Carrier PY2PPB042090AA specifications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is the genuine Carrier OEM board — not a third-party substitute. OEM boards retain exact factory timing parameters for trial-for-ignition, flame-sensing thresholds, and lockout logic, eliminating the risk of nuisance faults or voided equipment warranties common with aftermarket alternatives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Requires shutting off gas supply and 120V power before servicing. Photograph all wiring harness connections before disconnecting. Tools needed: Phillips and flat-head screwdrivers, needle-nose pliers, a multimeter for post-install verification. Recommend a qualified HVAC technician for gas appliance control board replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Ships same business day from our stocked warehouse — no waiting on special orders.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Directly fits Carrier model \u003cstrong\u003ePY2PPB042090AA\u003c\/strong\u003e packaged gas\/electric unit. Also compatible with select Carrier, Bryant, and Payne rooftop units using the LH33WP003 \/ LH33WP003A board. Always verify your existing board's part number on the label before ordering to confirm fitment. Have questions? Our HVAC parts specialists verify compatibility before you buy — reach out before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640511746419,"sku":"CARRIE-PY2PPB042090AA-CONTROL_BOARD-LH33WP003","price":562.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640511779187,"sku":"CARRIE-PY2PPB042090AA-CONTROL_BOARD-LH33WP003-GEN","price":494.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-LH33WP003_bacc7904-1d08-408c-be36-9feb06b7fb54.jpg?v=1775028059","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py2ppb042090aa-control-board-cyc67p","provider":"National HVAC Parts","version":"1.0","type":"link"}